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What is the best way to organize a join within a foreach?

I have two tables: {users, orders}. In this example, let's say that for each 1 User in the users table, there are 10 Orders in the orders table. I have to use pyspark to generate a statement of Orders for each User. So, a single user will need his/her own list of Orders. Additionally, I need t

What is the best way to organize a join within a foreach?

Marco Costantini 5:55 PM (5 minutes ago) to user I have two tables: {users, orders}. In this example, let's say that for each 1 User in the users table, there are 10 Orders in the orders table. I have to use pyspark to generate a statement of Orders for each User. So, a single user will need

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Reg: create spark using virtual machine through chef

Hi team, Myself akhil, Iam trying to create a spark using virtual machine through chef. Could you please help us how we can do it. If possible could you please share the documentation. Regards Akhil

Re: Use Spark Aggregator in PySpark

Hi, For an aggregating UDF, use spark.udf.registerJavaUDAF(name, className). Enrico Am 23.04.23 um 23:42 schrieb Thomas Wang: Hi Spark Community, I have implemented a custom Spark Aggregator (a subclass to |org.apache.spark.sql.expressions.Aggregator|). Now I'm trying to use it in a PySpa